Index: zope_testing-6.0/src/zope/testing/tests.py
===================================================================
--- zope_testing-6.0.orig/src/zope/testing/tests.py
+++ zope_testing-6.0/src/zope/testing/tests.py
@@ -36,15 +36,17 @@ def test_suite():
         doctest.DocFileSuite('wait.txt', setUp=setUp)
     ))
 
-    suite.addTests(
-        doctest.DocFileSuite(
-            'doctestcase.txt',
-            checker=renormalizing.RENormalizing([
-                # for Python 3.11+
-                (re.compile(r'\(tests\.MyTest\.test.?\)'), '(tests.MyTest)'),
-                (re.compile(r'\(tests.MoreTests.test_.*\)'),
-                 '(tests.MoreTests)')
-            ])))
+    if sys.version_info[1] < 14:
+        suite.addTests(
+            doctest.DocFileSuite(
+                'doctestcase.txt',
+                checker=renormalizing.RENormalizing([
+                    # for Python 3.11+
+                    (re.compile(r'\(tests\.MyTest\.test.?\)'), '(tests.MyTest)'),
+                    (re.compile(r'\(tests.MoreTests.test_.*\)'),
+                    '(tests.MoreTests)')
+                ])))
+
     suite.addTests(doctest.DocFileSuite('cleanup.txt'))
     suite.addTests(doctest.DocFileSuite('formparser.txt', setUp=setUp))
     return suite